The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2014
Filed:
Mar. 06, 2009
Applicant:
Shozo Yamasaki, Kawasaki, JP;
Inventor:
Shozo Yamasaki, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 13/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
When a data processing device is disconnected from a computer system after mutual authentication has been completed between the computer system and the data processing device, the data processing device cancels an authenticated state, and is not able to transfer data to a device other than a specific computer system. Therefore, even when the data processing device is connected to a device other than the specific computer system after the connection of a cable supporting hot swapping has been changed, the data processing device maintains the confidentiality of data.